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Validating System Prior Art in High-Profile Litigation Through Physical Device Analysis

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Value Delivered

GreyB provided the client with a compelling evidence in high-profile litigation by validating system prior art through a tangible, hands-on approach. 

The real-time functionality of the Coolpad 728 not only verified its existence prior to the cut-off date but also provided compelling evidence of the technology in operation. This made prior art more defensible, enhancing its overall credibility.

Problem Solved 

The client sought to identify mobile devices capable of operating on multiple networks, such as GSM and CDMA. The unique feature required was that each call—whether received, missed, or dialed—be tagged with a flag indicating the network that handled it.

The Coolpad 728 smartphone was identified as relevant prior art. However, no definitive documentation was available to confirm its availability before the cut-off date. The most promising lead was a blog published after the critical date, which could not be used as valid legal evidence due to its later publication. However, the post strongly highlighted the device’s market availability prior to the required date. This necessitated an alternative approach to establish a verifiable timeline.

Solutions Offered

To address this limitation, a physical verification approach was implemented. A Coolpad 728 device was sourced and purchased from an online store to conduct a detailed examination. The smartphone’s call records were reviewed, confirming that it displayed network-based indicators, such as ‘G’ for GSM, which matched the required prior art feature.

The critical breakthrough occurred when the inner back panel of the device revealed a manufacturing date of December 2005, which predated the cut-off date. This direct inspection provided a concrete proof of its existence and functionality before the required timeline.

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The Researchers

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Leading comprehensive IP searches in telecom, semiconductors, and audio/video coding technologies.

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